My friends and I loved this place and are super grateful to Viia for being so accommodating.
It's in the heart of Sukhumvit and accessible by grab, motorcycle, BTS. The place itself fit 6 of us very comfortably and having 3 bathrooms meant that nobody ever had to wait for a shower or to use the loo. The house is also beautifully decorated and very modern - perfect for a longer stay if necessary.
All in all, had a really great time here and would 10/10 recommend this to future guests.